中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Searching for primordial black holes with stochastic gravitational-wave background in the space-based detector frequency band

文献类型:期刊论文

作者Wang, Yi-Fan; Huang, Qing-Guo; Li, Tjonnie G. F.; Liao, Shihong8
刊名PHYSICAL REVIEW D
出版日期2020
卷号101期号:6页码:63019
ISSN号2470-0010
关键词DARK-MATTER HALOES EVOLUTION
DOI10.1103/PhysRevD.101.063019
英文摘要Assuming that primordial black holes compose a fraction of dark matter, some of them may accumulate at the center of galaxy and perform a prograde or retrograde orbit against the gravity pointing towards the center exerted by the central massive black hole. If the mass of primordial black holes is of the order of stellar mass or smaller, such extreme mass ratio inspirals can emit gravitational waves and form a background due to incoherent superposition of all the contributions of the Universe. We investigate the stochastic gravitational-wave background energy density spectra from the directional source, the primordial black holes surrounding Sagittarius A* of the Milky Way, and the isotropic extragalactic total contribution, respectively. As will be shown, the resultant stochastic gravitational-wave background energy density shows different spectrum features such as the peak positions in the frequency domain for the above two kinds of sources. Detection of stochastic gravitational-wave background with such a feature may provide evidence for the existence of primordial black holes. Conversely, a null searching result can put constraints on the abundance of primordial black holes in dark matter.
学科主题Astronomy & Astrophysics ; Physics
语种英语
源URL[http://ir.itp.ac.cn/handle/311006/27086]  
专题理论物理研究所_理论物理所1978-2010年知识产出
作者单位1.Chinese Acad Sci, Natl Astron Observ, Key Lab Computat Astrophys, Beijing 100012, Peoples R China
2.Leibniz Univ Hannover, D-30167 Hannover, Germany
3.Wang, Yi-Fan; Li, Tjonnie G. F.] Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China
4.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
5.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
6.Albert Einstein Inst, Max Planck Inst Gravitationsphys, D-30167 Hannover, Germany
7.Yangzhou Univ, Ctr Gravitat & Cosmol, Coll Phys Sci & Technol, 88 South Univ Ave, Yangzhou 225009, Jiangsu, Peoples R China
8.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, 36 Lushan Lu, Changsha 410081, Peoples R China
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GB/T 7714
Wang, Yi-Fan,Huang, Qing-Guo,Li, Tjonnie G. F.,et al. Searching for primordial black holes with stochastic gravitational-wave background in the space-based detector frequency band[J]. PHYSICAL REVIEW D,2020,101(6):63019.
APA Wang, Yi-Fan,Huang, Qing-Guo,Li, Tjonnie G. F.,&Liao, Shihong.(2020).Searching for primordial black holes with stochastic gravitational-wave background in the space-based detector frequency band.PHYSICAL REVIEW D,101(6),63019.
MLA Wang, Yi-Fan,et al."Searching for primordial black holes with stochastic gravitational-wave background in the space-based detector frequency band".PHYSICAL REVIEW D 101.6(2020):63019.

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来源:理论物理研究所

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